Training device



FIG. 1 is a top plan view of a training device embodying my new design, the bottom view being identical thereto;

FIG. 2 is a front edge view thereof, the rear edge view being identical thereto; and,

FIG. 3 is a left edge view thereof, the right edge view being identical thereto.

The broken lines in each of the figures is to designate a band connection feature not forming a part of the overall design. 

The ornamental design for a training device, as shown and described. 